Perhaps you should try some spelling variations:
thuong trong » thong trong, duong trong, thuoc trong
phuong trong » huong trong, phong trong, thuong truong
hanh trung » thanh trung, hanh trang, manh trung
trung lan » trung van, trong lan, trung can
hinh toan » tinh toan, thanh toan, trinh toan
chu manh » ho manh, chu han, thu minh
toan ban » van ban
chu van » cuu van, chu han

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu manh) or (chu van)) - hanh trung lan ((phuong trong) OR (thuong trong)) hinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu manh) OR (chu van)) - hanh trung lan ((phuong trong) OR (thuong trong)) hinh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu manh) or (chu van)) - hanh trung lan ((phuong trong) OR (thuong trong)) hinh toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chu manh) or (chu van)) - hanh trung lan ((phuong trong) OR (thuong trong)) hinh toan ban*.